| Patents for G08B 21 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for (34,716) |
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| 08/14/1991 | EP0441381A1 Capacitive occupation detector apparatus |
| 08/14/1991 | CN2082881U On-line monitoring warning device of abrasive particle |
| 08/14/1991 | CN2082880U Theft-proof alarm for low voltage transmission line |
| 08/14/1991 | CN2082879U Vacancy-measuring controlling warning device for transfusion |
| 08/09/1991 | CA2035415A1 Capacitive occupation detector apparatus |
| 08/08/1991 | WO1991011789A1 Preassembled air data sensor and transducer |
| 08/07/1991 | EP0233240B1 Intruder detection system |
| 08/07/1991 | CN1053699A Wire-break warning apparatus for heating device of dust remouing ultrasonic horn |
| 08/07/1991 | CN1053660A Diagnostic system for evaluating performance of critical valves in steam turbine system |
| 08/06/1991 | US5038137 Sleep posture monitor and alarm system |
| 08/06/1991 | US5036610 Pet locator system and method |
| 07/31/1991 | CN2082000U Waking device for preventin children from catching cold |
| 07/31/1991 | CN2081719U Bed-wetting alarm |
| 07/31/1991 | CN1053396A Warning device for looseness of vehicle wheel hub |
| 07/30/1991 | US5036312 Spring failure detection and safety system |
| 07/30/1991 | US5036309 Portable system and method for continuously monitoring protective clothing for detecting and signaling the occurrence of a breach therein |
| 07/30/1991 | CA1287114C Remote monitoring and alarm system employing multiple digitally encoded words |
| 07/26/1991 | CA2034844A1 Diagnostic system for evaluating the performance of critical valves in a steam turbine system |
| 07/25/1991 | WO1991010979A1 Diagnostics for electronic transmission control system |
| 07/23/1991 | US5034724 Alarm device for wallets and the like |
| 07/23/1991 | CA2023350A1 Garage door openers |
| 07/17/1991 | EP0437341A2 Barrier structures |
| 07/16/1991 | US5032825 Battery capacity indicator |
| 07/16/1991 | US5032824 Personal alarm |
| 07/16/1991 | US5032823 Secure personnel monitoring system |
| 07/11/1991 | WO1991010220A1 An electric control apparatus |
| 07/03/1991 | EP0434694A1 Electromagnetic damped inertia sensor |
| 07/03/1991 | CN2080196U Micro power electronic anti-theft warning device of bicycle |
| 07/02/1991 | US5029293 Device for locating an individual fallen into the sea |
| 07/02/1991 | US5028909 Golf bag alarm |
| 07/02/1991 | CA1285615C Electrical power line and substation monitoring apparatus and systems |
| 06/22/1991 | WO1991009757A1 Golf cart control system |
| 06/19/1991 | CN2079333U Multi-function electric power facilities theft-proof alarming device |
| 06/19/1991 | CN2079332U Eight-way lighting alarm device controlled by single-chip microcomputer |
| 06/19/1991 | CN2079331U Nearsight-proof electric alarming device |
| 06/19/1991 | CN2079052U Infusion monitor |
| 06/19/1991 | CN2079037U Short sightedness protector for child |
| 06/18/1991 | US5025426 Reminder apparatus |
| 06/18/1991 | US5025247 Portable emergency alert system |
| 06/12/1991 | CN2078903U Automatic monitor for posture while studying and light illumination |
| 06/12/1991 | CN1052039A 电子纸尿片 Electronic Diapers |
| 06/11/1991 | US5023597 Detection apparatus for safety eyewear |
| 06/11/1991 | US5023593 Heat-emitting |
| 06/11/1991 | US5022244 Pin-clutch mechanism for theft-deterrent device |
| 06/05/1991 | CN2078467U Alarm for fish pond |
| 06/05/1991 | CN2078172U Wireless multifunctional photoelectric transfer monitor for medical use |
| 06/05/1991 | CN2078167U Automatic alarm for infusion |
| 06/05/1991 | CN1052009A Stator coil water system early alert hydrogen leakage monitor |
| 06/04/1991 | US5021794 Telephone-activated |
| 06/04/1991 | US5021765 Security system having detector means sensitive to the proximity of at least one detected object |
| 06/04/1991 | US5021764 Diagnostics for electronic transmission control system |
| 06/04/1991 | US5020492 Warning system for marine propulsion engine |
| 05/29/1991 | CN2078028U Alarm for baby sleep |
| 05/29/1991 | CN1051778A Alarm for water failure of circulating pump |
| 05/23/1991 | CA2030462A1 Stator coil water system early alert hydrogen leakage monitor |
| 05/21/1991 | US5017912 Electrical detection of shear pin operation |
| 05/21/1991 | US5017908 Security system for sensing leakage of fluid from containers |
| 05/15/1991 | EP0427559A2 A load security system |
| 05/15/1991 | CN2076857U Infusion safety alarm |
| 05/14/1991 | US5016006 Audio alarm outputting device for outboard engine |
| 05/14/1991 | US5015806 Electrical switching device |
| 05/14/1991 | US5014810 Method for controlling the release of passenger restraint systems |
| 05/14/1991 | CA1284191C Remote confinement system |
| 05/11/1991 | CA2029634A1 Load security system |
| 05/08/1991 | EP0425989A2 Liquid crystal video projector |
| 05/07/1991 | US5014041 Shoe fitting system |
| 05/07/1991 | US5014040 Personal locator transmitter |
| 05/02/1991 | WO1991006083A1 Electrical detection of shear pin operation |
| 05/02/1991 | WO1991006082A1 Method and apparatus for the treatment and prevention of posture deficiencies of the spine |
| 05/02/1991 | EP0424582A1 Doze warning device |
| 05/01/1991 | CN2076270U 振动开关 Vibration Switch |
| 04/30/1991 | US5012457 Aquatic transducer system |
| 04/30/1991 | US5012226 Safety alertness monitoring system |
| 04/30/1991 | CA2001799A1 Pool alarm |
| 04/24/1991 | EP0423109A1 Radio frequency detector |
| 04/18/1991 | WO1991004689A1 Document retainer |
| 04/18/1991 | DE4002843C1 Protective breathing mask with filter - having gas sensors in-front and behind with difference in their signals providing signal for change of filter |
| 04/18/1991 | DE3934185A1 Circuit for monitoring of high voltage pylons - uses strips of parallel pressure switches electrically connected to monitoring circuitry |
| 04/16/1991 | US5008654 Patient ambulation motion detector |
| 04/16/1991 | US5008652 Water leak detection apparatus for use in suspended ceilings |
| 04/16/1991 | US5008500 Document feeder window closed detection assembly |
| 04/13/1991 | CA2000706A1 Method and apparatus for detecting leaks in rubber gloves and the like |
| 04/10/1991 | EP0421100A1 Procedure and equipment for recognizing dangerous conditions in a room |
| 04/09/1991 | US5006844 Tire abnormality detecting device |
| 04/09/1991 | US5006834 Liquid level alarm |
| 04/09/1991 | US5006832 Pocket alarm |
| 04/03/1991 | EP0419452A1 A method in alarm system, including recording of energy consumption. |
| 04/02/1991 | CA1282472C Water sensing apparatus |
| 03/27/1991 | EP0418403A1 Remote control device for a television receiver |
| 03/27/1991 | EP0418325A1 Low level wind shear warning system |
| 03/27/1991 | EP0418321A1 Methods, systems and apparatus for detecting changes in variables. |
| 03/26/1991 | US5003294 Remote infra-red personal alarm system |
| 03/20/1991 | CN2073605U Multifunctional alarm for the use in vehicle |
| 03/19/1991 | US5001466 Earthquake detector |
| 03/19/1991 | US5001465 Crane boom electrostatic . . . alarm |
| 03/19/1991 | US5001463 Method and apparatus for detecting airborne allergen particulates |
| 03/19/1991 | US5001462 Personal safety alarm and light |
| 03/13/1991 | CN2073137U Self-generating unit used on fender for alarm |
| 03/13/1991 | CN2072783U Anti-theft alarming suitcase |
| 03/13/1991 | CN1012010B Radio telemetering and early-warning system of mud-rock flow |